plant technology 1

Plant Technology : 

Plant Technology Create By Music and Nam

Genetic engineering in crop agriculture : 

Genetic engineering in crop agriculture Genetic engineering is often showing as an advancement solution to hunger and environmental problems in agriculture. It outlines three geographies of difference that separate agriculture in the global North from farming in most of the global South. Those differences point to the need for more place-specific, multifaceted, and farmer-centered approaches to agricultural productivity and sustainability, approaches to which geographers have much to contribute.

Genetic Technology for resistance to insect pest : 

Genetic Technology for resistance to insect pest Insect attack is a serious agricultural problem leading to yield losses and reduced product quality. Insects can cause damage both in the field and during storage in silos. Each year, insects destroy about 25 percent of food crops worldwide. The larvae of Ostrinia nubilalis, the European corn borer, can destroy up to 20 percent of a maize crop.

Genetic engineering for disease resistance : 

Genetic engineering for disease resistance Plants do not possess a complex immunoglobulin-based protection system that is found in higher vertebrates to defend against attacking microbial pathogens; however, they do have a wide variety of innate host defense mechanisms at their disposal. However, these defense mechanisms are not adequate and often compromised by the invading microbial pathogens.

What is the bio control of weeds ? : 

What is the bio control of weeds ? Biological control is the intentional manipulation of natural enemies by humans for the purpose of controlling pests. Biological control of aquatic weeds is especially attractive because rivers and lakes are sensitive ecosystems important to wildlife and human health.

Pathogens for insect control : 

Pathogens for insect control The application of microorganisms for control of insect pests was proposed by notable early pioneers in invertebrate pathology such as Agostino Bassi, Louis Pasteur, and Elie Metchnikoff (Steinhaus,1956, 1975) The use of a virus - ( Oryctes nonoccluded virus ) Fungus - ( Entomophaga maimaiga ) palm rhinoceros beetle - ( Oryctes rhinoceros ) Gypsy moth - ( Lymantria dispar ) Bacterium - ( Bacillus thuringiensis )

Pathogens for insect control : 

Pathogens for insect control entomopathogenic viruses, bacteria, fungi, nematodes, and protozoa as inundatively applied microbial control agents are presented.

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Oryctes nonoccluded virus

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Entomophaga maimaiga

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Oryctes rhinoceros

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Lymantria dispar

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Bacillus thuringiensis

Microbial Biocontrol of plant disease : 

Microbial Biocontrol of plant disease Antagonistic fungi, Chaetomium globosum Cg8, Ch. cupreum Cc9, Trichoderma harzianum T88-2 and transformant of T. harzianum China carrying resistant gene to carbendazim were tested to inhibit mango anthracnose caused by Colletotrichum gloeosporioides M002-2 in bi-culture antagonistic tests. Results showed that Ch. globosum and Ch. cupreum could resist to carbendazim at the concentration of 0.2 ppm which inhibited the mycelial growth and inoculum production of C. gloeosporioides as 60 and 87 percent. But for T. harzianum T88-2 showed the highest resistant to carbendazim at the concentration of 0.8 ppm which in bi-culture on PDA incorporated with carbendazim could inhibit the mycelial growth

Use of parasites and pradator to control Insect and mite pest : 

Use of parasites and pradator to control Insect and mite pest The interview revealed that Mimosa pudica L. was the most common type of weeds. Most farmers (74%) used herbicide to control weeds and only 2% of the respondents used mowing method. The most commonly used herbicides were glyphosate and paraquatdichloride. The application of herbicide tended to be highest during May to August when the rainy season and the weed spreading begin The insecticide use in the area included methomyl, chlorpyrifos, parathion methyl,abamactin, cypermethrin and endosulfan. The most commonly used insecticide was methomyl which was used mainly in May-June. Furthermore, it was found that some farmers used pesticides that have beenbanned in Thailand such as parathion methyl andendosulfan.

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